| Type: | Alloy Steel Bar |
|---|---|
| Special Use: | Free Cutting Steel |
| Application: | Tool Steel Bar |
| Technique: | Hot Rolled |
| Standard: | ASTM |
Quick Details
Specifications
Overview
H21 tool steel round bar
Product Description
Similar Grade:SKD5,T20821,DIN1.2581
Shape:Round,Flat,square
Size
| Diameter(mm) | Thickness(mm) | Width(mm) | Length(mm) | |
| Round | 8-420 | - | - | 2000-5800 |
| Square | 8-420 | - | - | 2000-5800 |
| Flat | - | 10-150 | 80-600 | 2000-5800 |
Chemical composition(%)
| Grade | C | Mn | P Max | S Max | Si | Cr | V | W |
| H21 Alloy tool steel | 0.26 to 0.36 | 0.15 to 0.40 | 0.030 | 0.030 | 0.15 to 0.50 | 3.00to 3.75 | 0.30 to 0.60 | 8.50 to 10.00 |
Hardeness
| Type | Annealed Max BHN |
Cold Drawn Max BHN |
| H21 | 235 | 262 |
Meterial and Manufacture
unless otherwise specified,H21 tool steel covered by this specification shall be made by an electric melting process.It shall be made from ingots or slabs that have been reduced in cross section in such a manner to such a degree as to ensure proper refinement of the solidification structure.
Ultrasonic Quality
H21 tool steel will be ultrasonically tested at appropriate stages of the manufacture to ensure the quality,when and as agreed upon between seller and purchaser.
Quality assurance
ISO 9001 certified,IQNET,CQC.
Steelmaking Process
EF,EF/EAF+LF+VD,EF/EAF+ESR
Packaging & Shipping
Packing&loading
1.unless otherwise specified,shipment shall be packaged and loaded in accordence with Practices A 700.
2.When specified in cantract or order,and for direct procurement by or direct shipment to the goverment,when Level A is specified,preservation,packaging and loading shall be in accordence with the Level A requirements of MIL-STD-163.
Package making:
H21 tool steel are supplied with marking according to standard A 681 and customer's requirement.
Delivery details:
Within 30-50 days.